1. Verify the following:
AT: Selector lever is in P or N position.
MT: Shift lever is in neutral position.
2. Verify that no DTCs are available.
3. Warm up the engine (ECT is approx. 80 °C {176 °F} or more) as follows.a. Start the engine.b. Racing at the engine speed 2,500—3,000 rpm for 3 min.
4. Turn off the electrical loads.
5. Wait until the cooling fans stop.
6. Connect the SST (M-MDS) to the DLC‐2.
7. Verify that the idling speed (M-MDS: RPM PID) is within the specification using the M-MDS function.Standard
AT: 700—800 rpm
MT: 670—770 rpm
NOTE:
Ignition timing is not adjustable.
Ignition timing verification requires M-MDS.
1. Verify that the ignition timing (M-MDS: SPARKADV PID) is within the specification using M-MDS.Ignition timing
Approx. BTDC 8 °
2. Verify that ignition timing advances when the engine speed increases gradually.
If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See SYMPTOM DIAGNOSTIC INDEX [LF].)
NOTE:
Idle speed is not adjustable.
Idle speed verification requires M-MDS.
1. Verify that the idle speed (M-MDS: RPM PID) is within the specification using M-MDS.
If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See SYMPTOM DIAGNOSTIC INDEX [LF].)
Idle speed
No load: 670—770 rpm (MT), 700—800 rpm (AT)
Electrical loads (38—48 A): 700—800 rpm
Electrical loads (more than 48 A): 800—900 rpm
P/S ON: 700—800 rpm (MT), 750—850 rpm (AT)
A/C ON: 825—925 rpm (MT), 775—875 rpm (AT)
1. Verify that the idle speed and ignition timing are within the specification. (See ENGINE TUNE-UP [LF].) (See ENGINE TUNE-UP [LF].)
2. Insert an exhaust gas analyzer to the tailpipe.
3. Verify that the CO and HC concentrations are within the regulation.
If there is malfunction, refer to “ENGINE SYMPTOM TROUBLESHOOTING”. (See SYMPTOM DIAGNOSTIC INDEX [LF].)
Idle mixture
HC concentration: Within the regulation
CO concentration: Within the regulation